Extending the MINLO method

Abstract

We consider improving POWHEG+MINLO simulations, so as to also render them NLO accurate in the description of observables receiving contributions from events with lower parton multiplicity than present in their underlying NLO calculation. On a conceptual level we follow the strategy of the so-called MINLO' programs. Whereas the existing MINLO' framework requires explicit analytic input from higher order resummation, here we derive an effective numerical approximation to these ingredients, by imposing unitarity. This offers a way of extending the MINLO' method to more complex processes, complementary to the known route which uses explicit computations of high-accuracy resummation inputs. Specifically, we have focused on Higgs-plus-two-jet production (HJJ) and related processes. We also consider how one can cover three units of multiplicity at NLO accuracy, i.e. we consider how the HJJ-MINLO simulation may yield NLO accuracy for inclusive H, HJ, and HJJ quantities. We perform a feasibility study assessing the potential of these ideas.

66 pages, 22 figures; v2 references added; v3=JHEP, improved readability

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Cited by in corpus (18)

• A portrait of the Higgs boson by the CMS experiment ten years after the discovery
• MiNNLO${}_{\text{PS}}$: A new method to match NNLO QCD to parton showers
• NNLOPS accurate associated HW production
• Top-pair production at the LHC with MiNNLO${}_{\mathrm{PS}}$
• Merging NLO Multi-jet Calculations with Improved Unitarization
• Factorization and Resummation for Generic Hierarchies between Jets
• What is a parton shower?
• Measurements of the Higgs boson production cross section and couplings in the W boson pair decay channel in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Advancing MiNNLO${}_{\mathrm{PS}}$ to diboson processes: $Z\gamma$ production at NNLO+PS
• $W^{+}{W}^{-}$ production at NNLO+PS with MiNNLO${}_{\mathrm{PS}}$
• A Positive Resampler for Monte Carlo Events with Negative Weights
• Merging WW and WW+jet with MINLO
• Jets and threshold summation in Deductor
• NNLO+PS Monte Carlo simulation of photon pair production with MiNNLOPS
• Monte Carlo simulations of Higgs-boson production at the LHC with the KrkNLO method
• MINLO t-channel single-top plus jet
• Constraints on anomalous Higgs boson couplings from its production and decay using the WW channel in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• An interface between the POWHEG BOX and MadGraph5_aMC@NLO